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examples: avoid "unbound variable" errors

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When the shell option `nounset` is set, we may get "unbound variable"
errors.
https://lists.gnu.org/r/bug-bison/2020-11/msg00013.html

* examples/test (diff_opts): Be sure to initialize it.
This commit is contained in:
Martin Rehak
2020-11-18 09:10:01 +01:00
committed by Akim Demaille
parent 336089123f
commit 2ca158c893
1 changed files with 1 additions and 0 deletions
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examples/test
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@@ -37,6 +37,7 @@ strip_prompt=false
# If diff supports --strip-trailing-cr, use it, to avoid EOL issues # If diff supports --strip-trailing-cr, use it, to avoid EOL issues
# when testing Java programs on Windows. # when testing Java programs on Windows.
echo "checking for diff --strip-trailing-cr..." echo "checking for diff --strip-trailing-cr..."
diff_opts=
if diff --strip-trailing-cr "$1" "$1"; then if diff --strip-trailing-cr "$1" "$1"; then
diff_opts=--strip-trailing-cr diff_opts=--strip-trailing-cr
fi fi